TABLE 4.

Prevalence and distribution of Salmonella enterica in irrigation ponds in produce farms

Pond code	Recovery of Salmonella in:																								Prevalence (%)
	2011			2012												2013
	Oct	Nov	Dec	Jan	Feb	Mar	Apr	May	June	July	Aug	Sept	Oct	Nov	Dec	Jan	Feb	Mar	Apr	May	June	July	Aug	Sept
MD1	+				+	+		+			+	+			+						+			+	37.5
CC2	+				+	+		+				+	+		+									+	33.3
LV			+		+	+				+	+											+		+	29.2
NP			+		+						+											+	+	+	25.0
SC			+					+			+	+											+	+	25.0